3” centrifugal submersible pumps for wells consisting of 3GF series canned motors coupled with multistage pumps; discharge and bracket made of brass, outer casing, pump shaft and cable protector made of steel, diffusers and impellers made of technopolymer; the special construction of the canned motor guarantees maximum safety in the most severe conditions; Tesla water fi lled canned motor always ensures absolute absence of “pollution”, and makes sure the pump can always be repaired. Motor equipped with thermal protector with automatic reset. Cooling of the pump is ensured by the pumped liquid. Pumps designed for pumping clean, non-aggressive water free of solid bodies or fi bres. The motors are of the PSC type and therefore require the starting capacitor; Tesla recommends Sintesi panels. For complete control and protection of the electric pump, we recommend the use of a Guardian control panel including, in addition to other functions, the protection against dry running.